# ISO 3966:1977 — Withdrawn and superseded ISO standards

For ISO 3966:1977, item title is Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes; status code is 9599; successor is ISO 3966:2008; withdrawn / published date is 1977-06-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3966:1977 _(verified: appears in the quote below)_
- **Item title:** Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3966:2008
- **Withdrawn / published date:** 1977-06-01 _(verified: appears in the quote below)_

## What the source says

> 9627,IS,,ISO 3966:1977,Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes,Mesure du débit des fluides dans les conduites fermées — Méthode d'exploration du champ des vitesses au moyen de tubes de Pitot doubles,1977-06-01,1,['17.120.10'],ISO/TC 30/SC 5,9599,,[50626],"['en','fr']",39,"<p>Specifies a method for the determination in a closed conduit of the volume rate of flow of a regular flow. Deals in particular with the technology and maintenance of Pitot static tubes, with the calculation of local velocities from measured differential pressures and with the computation of the flow rate by velocity integration.</p>"

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).